Значение и использование

These test methods for the chemical analysis of metals and alloys are primarily intended as referee methods to test such materials for compliance with compositional specifications. It is assumed that all who use these methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.

Область применения

1.1 These test methods cover the chemical analysis of copper alloys having chemical compositions within the following limits:

ElementConcentration, % Aluminum12.0 max Antimony 1.0 max Arsenic 1.0 max Cadmium 1.5 max Cobalt 1.0 max Copper40.0 min Iron 6.0 max Lead27.0 max Manganese 6.0 max Nickel50.0 max Phosphorus 1.0 max Silicon 5.0 max Sulfur 0.1 max Tin20.0 max Zinc50.0 max

1.2 The test methods appear in the following order:

Sections Aluminum by the Carbamate Extraction-Ethyl-
enedinitrilotetraacetate Titrimetric Test Method [2 % to 12 %]71-78 Copper by the Combined Electrodeposition Gravimetric and Oxalyldihydrazide Photometric Test Method [50 %, minimum]10-18 Iron by the 1,10-Phenanthroline Photometric Test Method [0.003 % to 1.25 %]19-28 Lead by Atomic Absorption Spectrometry [0.002 % to 15 %]90-100 Lead by the Ethylenedinitrilotetraacetic Acid (EDTA) Titrimetric Test Method [2.0 % to 30.0 %]29-36 Nickel by the Dimethylglyoxime Extraction Photometric Test Method [0.03 % to 5.0 %]37-46 Nickel by the Dimethylglyoxime Gravimetric Test Method [4 % to 50 %]55-62 Silver in Silver-Bearing Copper by Atomic Absorption Spectrometry [0.01 % to 0.12 %]101-112 Tin by the Iodotimetric Titration Test Method [0.5 % to 20 %]63-70 Tin by the Phenylfluorone Photometric Test Method [0.01 % to 1.0 %]113-123 Zinc by Atomic Absorption Spectrometry [0.2 % to 2 %]79-89 Zinc by the Ethylenedinitrilotetraacetic Acid (EDTA) Titrimetric Test Method [2 % to 40 %]47-54

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

10.1 This test method covers the determination of copper in concentrations greater than 50 %.

19.1 This test method covers the determination of iron in concentrations from 0.003 % to 1.25 %.

29.1 This test method covers the determination of lead in concentrations from 2.0 % to 30.0 %.

37.1 This test method covers the determination of nickel in concentrations from 0.03 % to 5.0 %.

47.1 This test method covers the determination of zinc in the range from 2 % to 40 %.

55.1 This test method covers the determination of nickel in concentrations from 4 % to 50 %.

63.1 This test method covers the determination of tin in concentrations from 0.5 % to 20 %.

71.1 This test method covers the determination of aluminum in concentrations from 2 % to 12 %.

79.1 This test method covers the determination of zinc in concentrations from 0.02 % to 2 %.

90.1 This test method covers the determination of lead in concentrations from 0.002 % to 15 %.

101.1 This test method covers the determination of silver in concentrations from 0.01 % to 0.12 %.

113.1 This test method covers the determination of tin in concentrations from 0.01 % to 1.0 %.